MATRIXSYNTH: ARP Omni 2 Keyboard Synthesizer Serviced with Purple LED Sliders

Tuesday, May 05, 2020

ARP Omni 2 Keyboard Synthesizer Serviced with Purple LED Sliders

Uploaded on May 4, 2020 Synth Chaser

via this auction, also on Reverb

"This synthesizer has just been serviced by Synthchaser, the west coast's leading ARP specialist - recapped, keys adjusted, new LED sliders, clean, fully functional, calibrated, in tune and sounding great. This keyboard is the sound of Joy Division and is all over The Cars' "Moving In Stereo", and many other late 70's/early 80's albums. It produces the lush Solina/String Ensemble sounds plus has a polyphonic synthesizer section with a voltage controlled filter, LFO, and ADSR, and a dedicated bass synthesizer section.

This is a very early model ARP Omni 2 (serial # 0031!!) with black pushbutton switches instead of orange and white, wood side panels instead of leather, and a power indicator LED and ARP logo badge on the front of the case. These are as it came from the factory and are only found in the earliest of Omni 2s. This synthesizer is in great condition, with some light scratching visible on the top of the case (see photos). Overall excellent condition for a 43 year old synth!

This keyboard has been serviced and upgraded with:

Synthchaser Precision LED slider upgrade. All 15 of the old original sliders have been replaced with new, smooth, high precision LED illuminated sliders. The difference in the way these sliders feel and perform compared to the originals is a huge improvement.

Power supply rebuilt - All tantalum and electrolytic capacitors in the power supply have been replaced, and high quality, high temperature 105 deg C capacitors have been used for the power supply filter capacitors.

All tantalum capacitors replaced - The tantalum capacitors in ARP synths are ticking time bombs. All the tantalum capacitors in this synth have been replaced with electrolytics to help provide stable operation for years to come.

Synthchaser 4075 Filter Enhancement Kit Installed - The ARP Omni uses the same 4075 filter submodule found in the Odyssey, Quadra, Avatar, and Pro DGX which came from the factory with a design calculation error which limited the cutoff frequency. This has been recapped, and enhanced to provide superior frequency response.
Oscilloscope calibration - Fully calibrated to factory spec using oscilloscope and frequency counter.
LEDs are Purple. Hey, Prince even used an Omni 2 back in the day!"

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